INTRO(8) Maintenance Procedures INTRO(8)


Intro, intro - introduction to maintenance commands and application


This section describes, in alphabetical order, commands that are used
chiefly for system maintenance and administration purposes.

Because of command restructuring for the Virtual File System
architecture, there are several instances of multiple manual pages that
begin with the same name. For example, the mount, pages - mount(8),
mount_hsfs(8), mount_nfs(8), mount_tmpfs(8), and mount_ufs(8). In each
such case the first of the multiple pages describes the syntax and
options of the generic command, that is, those options applicable to all
FSTypes (file system types). The succeeding pages describe the
functionality of the FSType-specific modules of the command. These pages
list the command followed by an underscore ( _ ) and the FSType to which
they pertain. Note that the administrator should not attempt to call
these modules directly. The generic command provides a common interface
to all of them. Thus the FSType-specific manual pages should not be
viewed as describing distinct commands, but rather as detailing those
aspects of a command that are specific to a particular FSType.


Unless otherwise noted, commands described in this section accept options
and other arguments according to the following syntax:

name [option(s)] [cmdarg(s)]


The name of an executable file.

- noargletter(s) or,

- argletter<>optarg

where <> is optional white space.

A single letter representing an option without an

A single letter representing an option requiring an

Argument (character string) satisfying preceding

Pathname (or other command argument) not beginning with -
or, - by itself indicating the standard input.


See attributes(7) for a discussion of the attributes listed in this


Sun Microsystems, Inc. gratefully acknowledges The Open Group for
permission to reproduce portions of its copyrighted documentation.
Original documentation from The Open Group can be obtained online at

The Institute of Electrical and Electronics Engineers and The Open Group,
have given us permission to reprint portions of their documentation.

In the following statement, the phrase ``this text'' refers to portions
of the system documentation.

Portions of this text are reprinted and reproduced in electronic form in
the SunOS Reference Manual, from IEEE Std 1003.1, 2004 Edition, Standard
for Information Technology -- Portable Operating System Interface
(POSIX), The Open Group Base Specifications Issue 6, Copyright (C)
2001-2004 by the Institute of Electrical and Electronics Engineers, Inc
and The Open Group. In the event of any discrepancy between these
versions and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at

This notice shall appear on any product containing this material.


getopt(1), getopt(3C), attributes(7)


Upon termination, each command returns 0 for normal termination and non-
zero to indicate troubles such as erroneous parameters, bad or
inaccessible data, or other inability to cope with the task at hand. It
is called variously ``exit code,'' ``exit status,'' or ``return code,''
and is described only where special conventions are involved.


Unfortunately, not all commands adhere to the standard syntax.

September 8, 2015 INTRO(8)